CLAS Physics Database

Measurement E213M189

Experiment: E1-6, 2025
Year: 2001

Experiment comment:

Experiment year: 2001—2002
Spokespersons: R.W. Gothe, A. Trivedi
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/dM(π+,p)
Q2: 2.0 — 2.4 GeV2
W: 1.5 — 1.525 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+,p), [GeV] dσ/dM(π+,p), [μb/GeV] uncertainty syst. uncert. total uncert.
1.090613 2.2964 0.1307 1.0658 1.0737
1.116155 6.7871 0.4227 2.2054 2.2455
1.141697 13.9265 0.8698 2.9117 3.0388
1.167239 25.2311 1.2207 3.767 3.9599
1.192781 34.8896 1.5074 4.424 4.6738
1.218323 46.4448 1.9564 5.2233 5.5777
1.243865 32.5682 1.4071 3.6753 3.9354
1.269407 22.2796 1.064 2.6131 2.8215
1.294949 14.9783 1.2369 1.8421 2.2188
1.320491 10.945 0.8218 1.4351 1.6537
1.346033 6.4568 0.5875 1.0232 1.4501
1.371575 0.7624 0.0853 0.321 0.457
1.397117 0.0001 0.0036 0.0 0.0036
1.422659 0.0 0.0012 0.0 0.0